Table 2. Distribution of characteristics of the type and cancer stage according treatment groups.

	TENS Placebo (n=13)		TENS Ativo (n=11)		Total (n=24)
	N	%	N	%	N	%
Type of tumor
Breast	9	69.2	4	36.4	13	54.2
Colorectal	4	30.8	7	63.6	11	45.8
T
T1	0	0.0	1	9.1	1	4.2
T2	6	46.2	2	18.2	8	33.3
T3	6	46.2	7	63.6	13	54.2
T4	1	7.6	1	9.1	2	8.3
N
N0	4	30.8	5	45.5	9	37.5
N1	6	46.2	5	45.5	11	45.8
N2	3	23.0	1	9.0	4	16.7
N3	0	0.0	0	0.0	0	0.0
M
M0	6	46.2	9	81.8	15	62.5
M1	5	38.5	2	18.2	7	29.2
M3	0	0.0	0	0.0	0	0.0
Mx	2	15.3	0	0.0	2	8.3

χ² test Pearson, *p>0.01